SUMMARY After the upgrade to Qt 5.13, Akonadi is crashing all the time and is unusable. STEPS TO REPRODUCE 1. Start akonadi, e.g. open KMail or run "akonadictl start" SOFTWARE/OS VERSIONS KDE Plasma Version: 5.16.2 KDE Frameworks Version: 5.59.0 Qt Version: 5.13.0 ADDITIONAL INFORMATION Backtrace from gdb: https://pastebin.com/raw/RJnK6s0d Bug 408897 seems to be relatively similar but the backtrace points to a different function, so I've opened this issue.
Pasting inline: #8 0x0000564b2259d08c in QTypedArrayData<unsigned short>::deallocate (data=<optimized out>) at /usr/include/qt/QtCore/qarraydata.h:236 #9 QString::~QString (this=0x7f924c01c060, __in_chrg=<optimized out>) at /usr/include/qt/QtCore/qstring.h:1133 #10 QHashNode<QString, QList<Akonadi::Server::ItemRetrievalRequest*> >::~QHashNode (this=0x7f924c01c050, __in_chrg=<optimized out>) at /usr/include/qt/QtCore/qhash.h:149 #11 QHash<QString, QList<Akonadi::Server::ItemRetrievalRequest*> >::deleteNode2 (node=0x7f924c01c050) at /usr/include/qt/QtCore/qhash.h:547 #12 QHash<QString, QList<Akonadi::Server::ItemRetrievalRequest*> >::deleteNode (this=0x564b2369f3f0, node=0x7f924c01c050) at /usr/include/qt/QtCore/qhash.h:537 #13 QHash<QString, QList<Akonadi::Server::ItemRetrievalRequest*> >::erase (this=this@entry=0x564b2369f3f0, it=..., it@entry=...) at /usr/include/qt/QtCore/qhash.h:874 #14 0x0000564b2259b55b in QHash<QString, QList<Akonadi::Server::ItemRetrievalRequest*> >::erase (it=..., this=0x564b2369f3f0) at /usr/include/qt/QtCore/qhash.h:477 #15 Akonadi::Server::ItemRetrievalManager::processRequest (this=0x564b2369f3c0) at /usr/src/debug/akonadi-19.04.2/src/server/storage/itemretrievalmanager.cpp:184
*** This bug has been marked as a duplicate of bug 409224 ***